.account {
    width: 400px;
    margin-top: 50px;
    margin-left: auto;
    margin-right: auto;
    background-color: #ffffff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: none;
}

.account .title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    position: relative;
}

.account .title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background-color: #4a90e2;
    margin: 10px auto 0;
}

.account .form-group {
    margin-bottom: 25px;
    position: relative;
}

.account .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
    font-size: 14px;
}

.account .form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.account .form-group input:focus {
    border-color: #4a90e2;
    outline: none;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.account .form-group .error-msg {
    color: #e74c3c;
    font-size: 12px;
    margin-top: 5px;
    display: block;
}

.account .row {
    margin-top: 30px;
}

#btnSubmit {
    background-color: #4a90e2;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
}

#btnSubmit:hover {
    background-color: #3a7bc8;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.3);
}

#btnSubmit:active {
    transform: translateY(0);
}

#btnSms {
    background-color: #f5f5f5;
    color: #555;
    border: 1px solid #ddd;
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

#btnSms:hover {
    background-color: #eee;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .account {
        width: 90%;
        padding: 20px;
    }
}